Download or read book Techniques for the Survey and Evaluation of Live Floor Loads and Fire Loads in Modern Office Buildings written by James Bryson and published by . This book was released on 1968 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The procedures and techniques developed for measuring and evaluating the live floor loads and fire loads in modern office buildings are summarized.The mai * n features of a computer program for analyzing the data are outlined.This program provides a tabulation of the data, some statistical properties, and selected graphical relationships between the measured loads and the characteristics and usage of the structure.A rationale is developed which is intended to achieve the ultimate goal--easier and less expensive means of surveying live loads in buildings and their combustible content.Two office buildings have been surveyed in a pilot evaluation of the survey techniques--the National Bureau of Standards Administration Building in Gaithersburg, Maryland, and the U. S. Civil Service Commission Building in downtown Washington, D. C.Typical results are presented to illustrate the computer output.(Author).

Download or read book Techniques for the Survey and Evaluation of Live Floor Loads and Fire Loads in Modern Office Buildings written by James Bryson and published by . This book was released on 1967 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Building Science Series written by and published by . This book was released on 1967-12 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Building Science Series written by and published by . This book was released on 1974 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Building Science Series written by United States. National Bureau of Standards and published by . This book was released on 1970 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by Henry E. Robinson and published by . This book was released on 1970 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Performance Characteristics for Sanitary Plumbing Fixtures written by Institute for Applied Technology (U.S.). Building Research Division and published by . This book was released on 1970 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiation Errors in Air Ducts Under Nonisothermal Conditions Using Thermocouples Thermistors and a Resistance Thermometer written by Joseph C. Davis and published by . This book was released on 1969 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies were made to determine the radiation error in temperature measurements made with thermocouples, thermistors, and a resistance thermometer in moving air at velocities ranging from 300 to 1300 fpm when the temperature of the duct wall surrounding the air stream was from 0 to 50 deg F higher than that of the air in the center of the duct. To eliminate all but the variable under study, conduction errors were minimized to a point where they were almost nonexistent by using Chromel P-constantan thermocouple wire and by employing other techniques. Radiation effects were studied when the probe housing the three types of temperature sensors was unshielded and again when it was shielded. Under the test conditions that prevail in the testing of air conditioners and heat pumps in laboratories, it should be possible to reduce the error in temperature measurement of the moving air to about 0.2 deg F by a suitable combination of air mixers, duct insulation, radiation shields, and calibration techniques. (Author).

Download or read book Interrelations Between Cement Concrete Properties written by Benjamin Leonard Bean and published by . This book was released on 1969 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Smoke and Gases Produced by Burning Aircraft Interior Materials written by Institute for Applied Technology (U.S.). Building Research Division and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt written by Sidney H. Greenfeld and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixteen years of outdoor weathering of laboratory-prepared smooth-surface and mineral-surfaced, felt-base roofing specimens has provided information on the effects of mineral additives on the durability of coating-grade roofing asphalts. Six finely divided mineral additives (blue black slate, clay, dolomite, fly ash, mica, and silica) were evaluated at concentrations up to 60 percent in California, Mid Continent and Venezuela asphalts. The mineral-surfaced specimens are all performing satisfactorily, and show only minor degrees of degradation. Of the smooth-surfaced specimens, the Mid-Continent asphalt performed the best and the California asphalt the poorest. The mica and blue black slate increased the durabilities of all three asphalts at all concentrations and two coating thicknesses. Fly ash, clay, dolomite, and silica were beneficial in some combinations, but had little effect in others. In general, these early results from outdoor exposure tend to corroborate the results obtained on these coatings exposed in weatherometers. (Author).

Download or read book Hail Resistance of Roofing Products written by Sidney H. Greenfeld and published by . This book was released on 1969 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A test was developed for evaluating the hail resistance of roofings, in which synthetic hailstones (ice spheres) of various sizes were shot at roof assemblies at their free-fall terminal v * elocities.Indentations, granule loss and roofing fracture were observed.The principal conclusion is that:All roofing materials have some resistance to hail damage, but as the size of the hail increases, a level of impact energy is reached at which damage occurs.This level lies in the range of 1 1/2 to 2 inch (3.8-5.1 cm) hailstones for most prepared roofings.(Author).

Download or read book A Study of the Variables Involved in the Saturating of Roofing Felts written by Sidney H. Greenfeld and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Causes of Variation in Chemical Analyses and Physical Tests of Portland Cement written by Benjamin Leonard Bean and published by . This book was released on 1969 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Variations in testing that could lead to the rejection of a material fully conforming to specification requirements, or the acceptance of a material with undesirable chemical or physical properties, are apparent in the results reported by laboratories participating in comparative tests of portland cements.Many of the causes for variation in chemical analyses and physical test results are listed in this discussion, and remedies for some of the more frequently encountered deficiences in apparatus and methods are suggested.Particular consideration is given to problems which do not seem to have been covered in sufficient detail in previous discussions of cement testing procedures.Literature references are given for additional information.(Author).

Download or read book Exploratory Studies of Early Strength Development in Portland Cement Pastes and Mortars written by Raymond Leonard Blaine and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Flexural Behavior of Prestressed Concrete Composite Tee beams written by James Bryson and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prestressed Tee-beams constructed by the split-beam method were tested to failure in flexure to study the behavior and ultimate strength of these beams and to compare their flexural characteristics with those of prestressed beams of conventional construction. Results showed that composite split-beams behaved similarly to the monolithically constructed beams on the basis of flexural response and ultimate load.